Line-spacing mechanism.



C. SPIRO. LINE SPACING MEUHANISM.. APPLIGATION ILnD Amm, 41910.

Patented Ma-If28, 1911.

N T OR I WM5/*wkn 2 SHEETS-SHEET 1.

Y c. s111110. LINE SPAGIQNGJMEGHANISM. 'APPLIOATIQE FILED AUG. 4, 1910.

Patented 111211128, 1911.

2 sums-s112111* z.

UNTED CHARLES Senao, or'in'niiv Yemen. Y.

LINE-erneute inncHANeM.

Application tiled August 4. 1910. Serial No. 575,522.

To a-ZZ whom it may concern.'

Be it known that i'. Ciminna Siano, a citizen of the United States, reeiding at New York, county oi NeayYork, State of New York, have invented certain new arid useful improvements in Line-Spacing Mechanism, oi' which the following is a. specification, retlerence heing had `thereiny to the accompanying` drawing.

The inventiondisclosed in this application reiates hroadly to typewriting machines and specifically to line Spacing mechanism for typewi'iting machines hy means of which the platen is adapted to be tin-ned predetermined distances for line spacing'.

" The principal ohject of this invention is to provide a line spacing' mechanism i'or type- Writing machines having a vertical shifting carriage: the line Spacing' mechanism being arranged to Shift with the platen carrying shifting irainc, with the exception of the operating' Vlever-.Which is mounted upon the main carriage ifranie and therefore does not ehi'lt daring' the shifting of the platen.

Another ohject oi' this invention ie to construct a line spacing mechanism particularly adapted tor a vertical Shifting carriage ot' a .iront strike typewriter, in which the hold ing. datent and. actuating dogs-are mountcd nponihe platen carrying shifting frame in )euch manner aS to he shifted in ,a vertical direction when the platen is moved from one printing' ie-i'el to another, and to connect the` actnaiinnA dog with an operating lever which if; carried upon a i1on-sihifting portion, ot' the carriage traine, i

.inother object of this invention is 'to consii'nct a holding' detent for a line Space Wheel in ent-h manner that the holding detent is adapted lo carry the line space determining' etopS.

Another ohjeet oifthis invention is to conistria-t a piroted holding' detent 'For the iine spare wheel in such manner aertovcerry a ino'val'ile iine sp: ce determining stop adaptH ed to he engaged hy mechanisms for operating the actuating' doe. the conetrnction ot parte heilig' sach that the abutting torce against the line Space determining' stop tends tutori-e fliedetent holding member between the line space wheel, than preventing over "throw at theend oi' ihe line Space movement. n. siii] lnrlher ohjcet oif this invention'is to construct the operatinglever 'for the line Spacing mechanism oi" a. front strike typewritinig' hiarhii'ie in eheh inannl f as to lie Specification of Letters Patent.

.fatented Mar. manitiiii.

l very close to the top plate oi the typewritl ingr machine and have the major portion of its weight considerably below the centeroi anspeneion, in order that gravity may assist in 'returning' the several parte to normal pw Sition.-

Still other and iftirther objects o" this inn vention wiii in 'part he obvious' and will in part he pointed ont in the s ecieationwhich hereinafter giioive. hy reierence to the accompanying drawings, in which like namen als' are need to indicate hire parts throughont the sererai figures thereof,` and the scope oi' the invention will he indicated by the appended claims.. i

Figure i is a sectional end View oit' a coinpiete typewriting machine showing' the relationai'iip of thcl line spacing mechanism to the carriage and other parte of the machine. hifz. :2 is a detail View Showing the line spacingr mechanism in eievation. Fig'. 3 is :i detail View ehtn'i'ing the line spacing mechanien-i in plan. Fig. ifi a detail View show ing the actuating don' and operative mech aninins therefor. in Side elevation. Fig. 5 is a detaii View f-ihowingg' iiny actuating donand operative mechanisme therefor, in end eie`- ration. l? 5. 6 is a detail iront View of the line determining stop. Fig'. 'i' is a detaii rear a detail View oi' the line atop. Fig. 9 is a detail 'view oi' the liioiding tleient.. ii'g. l0

ing iinlr. Fig. il is a detail eide View of the heli crank cminectingg' iinlr. Fig. l2 is a detail plan View ot the actuating; dog. Fig. 123 is a detaii elevationai View ofthe :tetria'tinrgdogr. Figi'. 11i is a detail elevational View of the connecting' link. Fig. i5 iS a de; Itail pian View of the/connecting link. Fig. lti is a detail elevational View ot the swinging dog' carri/ling' link. side elevationai AView oi the swinging; dog carrying huir. Fig. i8 is a detail elevational `view of the anchor bracket 'for the ewinfieging,` dog carrying iinir.. ll`ig.,19 is a side' View of the anchor bracket. furthe swinging link.

Referring particularly/'to Fig. l of the drawings. it will he noted that this figure i showa a great iii-any parte of a typewriting machine which do not speciiicaliy refer to View has heen made for the purpose of show ing the relationship ort' the line spacing parte ot the machine. and the portions of riew oi the line deteri'nining stop. Fig, 8 is' is an end elevation of the heli crank connect-i Fig. 17 is a detail mechan iein, operating' lever, etc., to the other 'l the line Spacing i'neclianisni, however, this 'brac wardly from the axis of rotation of the pivot the typewriter which are illustrated in Fig. 1 that do not appertain specifically to line spacing mechanism, are covered by applications for atent which'l are pending contemporaneouslly with this application. There fore, these parts will only be referred to generally in the hereinafter following speciiication. A

Again referring specifically to Fig. 1, the machine frame comprises a base portion 1, from which rise supporting columns 2, formed integral with said base portion. A supporting top plate 4, is adapted to be mounted upon the upper ends of the supporting columns by any convenient means of astening. Ribbon spools 5, and actuating mechanism therefor, is adapted to be carried by the forward portion of the top plate. Key board mechanism 6, is mounted within the machine 1frame and is adapted to be operatively connected with type bars 7, that are pivotally mounted within a type har segment 8.. Tabulating mechanism 9, is arranged at the rear portion of the machine frame and is operatively connected with an upper set of key levers 10. .v

Referringmore specifically tothe carriage mechanism, a carriage bed 11, is removably mounted upon the top plate 4, and knurled thumb screws 12, pass through the openings in the top plate and into the carriage bed in such manner as to firmly clamp the bed l1 to the top plate 4 in the machine frame. A reciprocating carriage comprising `side rails 14 and 1.5, which togetherl with the carriage bed 11, form runways for anti-friction balls 16. The side rails 14 and 15 are connected to end frames 17, which together with the several connecting cross rods, form a rigid reciprocating frame, within which a vertically shifting platen frame 18 is adapted to be mounted, and which carries a cylindrical platen 19'. The vertical shifting platen frame is ixedly mounted upon a' pivot' rod 20, which is adapted to rotate in the end 4frames 17, when the shifting platen frame 18 is rocked to move the platen 19l A, platen axle 21., is extended outwardly from from one printing level to another.

the cylindrical platen 19, through an open slot 22, which is formed in the carriage end frames 17. A line spacing Wheel 24, is mounted upon the platen axle 21, outside of the carriage end frame 17., and adjacent to a platen turning knob 25, (which is indicated in Fig. 3;) Fixedly mounted upon the outward extension of the pivot rod 20, for the laten shifting frame 18, is an anchor Eet 26, which 1s arranged to extend up- 20 for a. reason which will be more fully exretained against a stop bin 29, by means of a coiled spring *30. which is attached to a pin 31 mounted in th'e anchor bracket, and a similar pin 32, mounted in the swinging link 27. A line spacing actuating do 34, is pivotally mounted upon the lower en of the swing-` ing link 27. Atail 35, of the actuating line spacing dog, is normally held against a sto pin 36 which is carried by t-he swinging 1i 27, by means of a coiled spring 37, which is mounted upon the swinging link 27, and is attachedfto the actuating line spacing dog in such manner as to exert a force in an upward direction upon the body'of the dog.

Referring more particularly to Figs. 2

` and 3, it will be noted that 'the axis for t-he` pivot rod 2O of the platen shifting frame, substantially' biseets the swinging link 27, and it will also be noted that the anchor bracket 26, the swinging link 27 and the'v actuating dog 34, when in normal position, occupy a substantially fixed relation to the line spacing wheel 24, and it therefore follows that as theplaten carrying shifting frame 18 is rotated about the axis of the pivot rod 20, the actuating dog will be continually in a definite fixed relationship in regard to the teeth of the line spacing wheel. An operating lever 39, is rottively mounted in a boss member40, which is formed integral with the right end frame 17. The operating lever 39, is held in prbper position in the boss member 40, bymeans of a cross pin 41, which is firmly seated in `the operating lever 39, and is adapted to swing in a vertical direction between the walls of a Slot 42, and thus maintains the operating lever within the boss 1ne1nber'40. A bell crank connecting link 44, is pivotal v mounted upon the right end frame 17 ,by means of a stud screw 45, and is attached at ltslower end to a 'horizontal L-shaped connecting link 46,-

that is pivotally mounted? upon the swingn lever 39, permits the outer end of the operatinglever to lie Very close to the topv of the machine framel and at the same time forms a sulicient'space forv the lever to pass overthe ribbon spools. It will also be noted that the entire weight ofthe operating lever forward of the downward bend 49, is below will'be noted that the operating handle will.

Ibe restored to' normal position by the effect of gravity. The end trame 17, 1s provided VThe downward bend 49, on the operating the axis of rotation of the lever 39. Thus it vwith an opening 51, through which passes an elon vted stud member 52, that is tixedly inounte upon the platen shifting frame 18. The elongated stud member 52, extends outwaidly, and carries pivoted thereupon a line spacing.

structed to be seated between the teeth of the line spacing wheel 44, and thus resiliently retain the wheel in any particular line spacing position.v A^coiled 4spring 56, is l mounted upon the elongated stud member 52" and is attached to the line spacing detent 54, in such manner as to resiliently hold the engaging dog 55 against the linespacing wheel. A line space determining stop 57, is pivotally mounted as at 58, uion a facing member 59, of the line spacing etent 54. The facing member 59, is provided on g its upper face with a small projection 60, which is adapted to beseated in either or any of the depressions 61, that are formed upon the upper face of the line space vdetermining stop. The lower end of the line space determining stop is formed. with ste ped stop faces, which are adapted to be de itely positioned in the path of the swinging link 27, in order to determine the amount .of movement which -rthe swinging link may have, and by so determining the` amount of movement to determine the number of line spaces which the line spacing wheel24, will bev moved at each actuation of the operating lever 39. It will be noted that the butiing force exerted between a stopface 62, on the line space determining stop and the swingino' link 27, will be transmitted throughto the detent dog 55, and will tend to seat the dog more firmly between the teeth of the line spacing engaging wheel. It will be further noted that this extra 'pressure u on the de teiit dog is Aonly brought into e 'ect at the extreme limit of movement of the` several parts, and thus insuring against overthrow of the line spacing wheel 24.- when the operating lever 39 is violently actuated. The line space determim ing stop 57. is provided on its up er end with a handle portion 64, which ena les the operator to swing the line space determining stop member into either of the three positions to posit-ion the parts for actua-ting the line spacing wheel 2, at two or three line `space-intervals as may be desired.

The construction and arrangement of .the several parts of the line spacing mechanism are such that the actuating and holding ele.-

ments for the platen, are all arranged with `definite'relation to the platen itself and will follow the laten in. either of `its shifted positions. Vs

lever is mounted upon the main-.frame of the carriage proper, it does notshift when the platen is moved from one printing level `to another, and by this 4construction the line detent member '54, which is provided with an engaging dog 55, that is conhile the line spacing'operatingmounted toshift with the platen carriage. l' Having thus described my invention what l desire to claim is z- 70` l. In a line spacing mechanism for a typewriting machine, the combination of a carriage frame, a swinging platen carriage I mounted in said carriage fraaie, a cylindrical platen mounted in said swinging platen '75 carriage, a line space Wheel operatively con! nected with said platen, a pivot rod for said swinging platen carriage. an anchor member mounted upon said pivot rod, a swingi ing dog carrying link pivotally mounted l upon said anchor member, an actuating dog mounted upon said swinging lilik, and means for operating said actuating dog.

Q. In a line spacing mechanism for a typel writing machine, the combination of a carriage frame, a swinging laten carriage mounted in said carriage rame, a platen carried by said swinging platen carriage, a line spacin wheel operatively connected with said p aten, a pivot rod about which said swinging platen carriage rotates, an anchor bracket fixedly mounted upon said pivot rod, a swinging link pivotally mounted upon said anchor bracket, an actuating dog carried by said swinging link, an operating lever mounted upon said carriage frame,and operative means connecting. said operating lever and said swinging link.

3. In a line spacingmeclianism for a typeriage frame, a swinging platen carriage mounted in said carriage frame, a pivot rod about which said swinging platen carriage is adapted to rotate, a cylindrical platen carried by said .swinging platen carriage, a line spacing wheel operatively connected with saidV platen, an anchor bracket ixedly mounted upon said pivot rod, a. swinging link pivotally mounted uponsaid anchor bracket, an actuating dog. mounted upon said swinging link, an operating handle mounted for rotation in said carriage frame,- and Ymeans for connecting said rotatively' mounted handle with said actuating dog. f

4. In aline spacing mechanism for'a type- 115 writing machine, the combination of a cari'iage .fi-anic, a swinging platen carriage mounted in said carriage frame, a pivot rod about which vsaid platen-'carriage is adapted to rotate, an anchor bracketfixedly mounted uponfsaid ,pivot-rod,l a swinging link mounted upou'said anchor bracket,a Stop pin' carried by said anchor bracket` re- Y silient means for maintaining said swinging linkin engagement with saidstop pin, a platen vcarried by said swinging .platen carriage, a line spacing wheel operatively connected with said platen, an actuating i do'g carried by said swinging link and adapted to engage said line spacing wheel, and

writing machine, the combination of a car- 100 i l i l i i i l means for actuating said dog, substantially as described.

5. In a line spacing mechanismfor a typewriting machine, the combination of a carriage frame, a swinging platen carriage mounted in said carriage frame, a cylindrical platen carried by said platen carriage,`

a line spacing Wheel operatively connected with said cylindrical platen," a pivot rod i about which said platen carriage is adapted to swing, an anchor bracket ixedly mounted upon said pivot rod, a swinging link mounted upon said anchor bracket, an actuating dog mounted .upon said swinging link, a stop member carried by said swinging link resilient means for maintaining a portion of said actuating dog in connection with said stop member, an operating lever rotatively mounted in the'carriage frame, and operative means connecting said rotatively mounted' lever and said actuating dog.

6. Aline spacing mechanism for typewriting machines, including a carriage frame, a platen carriage mounted for movement in said carriage iram'e, a platen carried` by said platen carriage, line spacing mechanism for said platen including an'actuating dog mounted to move when said platen carriage is moved in the carriage frame, an operat- '30 ing lever carried by said ca rriag'e frame, and

operative means connecting said 'aictuntii'ig dog and said operating lever.

7. A line .spacing mechanism for typewriting machines, including a .line spacingwheel. -an actuating dog, means for carrying said actuating dog, a detent dog adapted to cooperate With said line spacing wheel, a swing stop member operatively connected wi th saidA ,detent dog and adapted to contact with the 40 carrying means for said actuatinfr do and swing transverse the path oi sait carrying means, the arrangement and construction of parts being such that pressure upon the stop member tends to force the detent dog more rigidly in engagement. with the line spacingwheel.

8. A. line spacing mechanism for typewriting machines, including a non-shifting car riage frame, a swinging platen frame rota- 'tively mounted in said carriage frame, a

platen mounted in .said .swing-ing carriage frame, a detent member mounted upon said swinging carriage franuf. a line spacing wheel operatively connected with'said platen, a line space dog, means for mounting said line space dog in such manner as tp maintain said dog in a normal definite 'position with 'relation to said line spacing Wheel for any printing position to which said platen may' be' shifted, and means for actuating said actuating dog, said actuating means including an'operating lever mounted upon said non shifting cayriage frame.

9. In a line spacing mechanism for type- Writing machines, the combination of a carriage frame, a swinging platen carriage mounted in said carriage frame, a platen carried by said swinging platen carriage,

a line spacing wheel operatively connected with, said platen, a detent member carried by said swinging'platenarriage, a line space determining stop member mounted upon said detent member, an actuating dog, supporting means for said actuating dog arranged in such manner as to shift said dog when said platen is shifted, an operating lever rotatively mounted in said carriage frame, 'and means operatively connecting said operating lever and said actuating dog.

10. A line spacing mechanism for typewriting maclnnes, including a carriage frame, .'a .cylindrical platen, means fon" mounting said cylindrical platen in said carriage frame, a line spacing wheel operatively connected with sa'id cylindrical platen, 85 means for operating said line spacing wheel comprising an actuating dog, means for s upporting said actuating dog, an operating handle rotatively mounted in said carriage frame, operative. means connecting 'said 90 operating handle and said actuating dog, said operating handle being formed with an axially alined portion and a portion-parallel to said axially alined portion, substantially as describe 95 11. In a line spacing mechanism for typewriting machines, the combination of a car-'- riage frame, a. platen carriage mounted for movement in said carriage frame, a cylin' drical platen mounted in said platen' car- 100 riage, a line spacing-Wheel operatively connected with said cylindrical platen, a holding detent pivotally mounted upon said platen. carriage, au abutting stop pivotally mounted upon said detent, an actuating dog.,r operatively connected with said platen 'carriage, an operating lever carried by said carriage frame, an actuating cam pin mounted in said operating lever, a bell crank ,link provided With a slot opening for copera-tion With said actuating cam pin, and operative means connecting said bell crank link and said actuating dog, substantially. as described.

In testimony 'ivhereof I aiiir my signature 1'15 inpresence of two.witnesses.

CHARLES STIRO.A l Witnesses:

E Dwn. E. JONES,

H. P. ALBEN.- 

